Outcome | Mean | Number of patients | Events | Distribution | Reference |
---|---|---|---|---|---|
Baseline SSC rate | 0.048 | 2621 | 127 | Beta | Cristofolini [16] |
Mortality with SSC | 0.017 | 118 | 2 | Beta | ibid |
Mortality without SSC | 0.007 | 2503 | 18 | Beta | |
Readmission SSC | 0.034 | 118 | 4 | Beta | |
Readmission No SSC | 0.000 | 2503 | 1 | Beta | |
Revision SSC | 0.068 | 118 | 8 | Beta | |
Revision No SSC | 0.005 | 2503 | 12 | Beta | |
All-cause mortality | 0.003 | [18] | |||
Multiplier for revision mortality | 1.300 | Wu [19] | |||
Length of stay data | |||||
Length of stay with surgical site complications | Mean | Lower CI | Upper CI | ||
Intensive care unit | 15.2 | 1 | 87.2 | Log normal | Cristofolini [16] |
Intermediate care | 4.8 | 0.5 | 25.2 | Log normal | |
General ward | 22.3 | 0.5 | 68.4 | Log normal | |
Length of stay without surgical site complications | |||||
Intensive care unit | 3.8 | 1 | 26 | Log normal | Cristofolini [16] |
Intermediate care | 2.4 | 0.5 | 10 | Log normal | |
General ward | 8.3 | 0.5 | 19 | Log normal | |
Utility data used in the model | |||||
Parameter | Mean | Alpha | Beta | Distribution | Source |
Disutility with SSI | 0.2 | 8 | 41 | Beta | Tuffaha [13] |
Utility with no SSI | 0.91 | 185 | 18 | Beta | |
Effectiveness data (Odds ratio and 95% CI) | |||||
Outcome | Mean | Lower CI | Upper CI | Distribution | Source |
Odds ratio for SSC | 0.220 | 0.060 | 0.810 | Log normal | Witt-Majchrzak [17] |
Reduction in LOS (days) | 0.500 | 0.020 | 0.70 | Log normal | Strugala [14] |